What is the term that developmentalists use to describe repetitive consonant-vowel combinations such as "ba-ba-ba" or "do-do-do"?

A teacher gives her class at least one unannounced quiz every week. The students never know which day it will fall on. The teacher is attempting to influence their study habits by using a _____

a) variable-ratio. b) fixed-ratio. c) variable-interval. d) fixed-interval.

Social-psychological research has revealed that viewers of a great deal of television come to view the world as a dangerous and hostile place. If Terry is one such person, what is he likely to think when he watches a violent cops-and-robbers show?

a. "If they can do it, so can I." b. "So that's how it's done." c. "I guess it's the urge to aggress that I'm feeling." d. "I had better get him before he gets me!"